Cool sites

Sponsors

fuel/air mixture screw adjustment procedure ?

This is a discussion on fuel/air mixture screw adjustment procedure ? within the Grizzly Engine & Transmission forums, part of the Grizzly Forums category; Hey guys, got my parts from cheap cycle, took them a week and a half or so for them to get the parts to me, ...

Try lowering the clip on the needle one position. 3 turns out on stock idle jet should be good.

Okay, I'll try that first. By lowering it you mean so the needle sticks further into the hole or less far? The needle that came with my kit has 3 positions, it's in the middle right now. (Shindy kit, the one I removed had 5 slots btw.)

To adjust the fuel mixture screw, turn it in until the engine stumbles or engine speed decreases. Now, turn it back out until engine stumbles or engine speed decreased. Then, set it midway in between those two settings.

Thanks guys, sounds almost like what I do for car carbs setting the idle mixture. 3 turns out, in until the rpm starts to drop then back out around 1/8-1/4 turn.

Also, I see what you mean by moving the clip down. If I move the needle clip down it moves the needle up which will give it a little more fuel and help keep it from stalling out. I'll try and adjust it and report back. Thanks again.

GrizzlyCentral.com is not associated with Yamaha in any way. We are an enthusiast site dedicated to the Yamaha Grizzly ATV. Our goal is to offer a place for Grizzly owners to discuss rides, events, mods, maintenance, purchasing, etc and offer help and assistance.Contact Us -
Yamaha Grizzly ATV Forum -
Archive -
Privacy Statement -
Top